MESON Chess Problem Database

Problem Display
PID: 254904 (4B2R/8/2p5/5K2/3p4/3kN3/2R5/8 w - - 0 1)

Zenkov, V

Zadachi i Etyudi, 2006

4B2R/8/2p5/5K2/3p4/3kN3/2R5/8

#2

5 + 3

3713 Snap 2022

SOLUTION

  • SOUND
  • Sets
    • 1...Kxe3
      • 2.Rh3#
  • Tries
    • 1.Ke5?
      • 1...Kxe3
        • 2.Rh3#
      • 1...dxe3
        • 2.Bg6#
      • 1...c5!
    • 1.Bxc6?
      • 1...Kxe3
        • 2.Rh3#
      • 1...dxe3!
  • Keys
    • 1.Bg6!
      • threat
        • 2.Kf4#
      • 1...Kxe3
        • 2.Rh3#
      • 1...dxe3
        • 2.Ke5#

This anticipates 263450(2009)

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 0
  • Sets
    • K(a);OGATEB,P-FLIGHT,XS(B)::R(E)
  • Tries
    • Try
      • K(C);P-FLIGHT
      • Vars
        • K(a);OGATEB,P-FLIGHT,XS(B)::R(E)
        • P(b);SBLOCK,XS(B)::B(D)
      • Refutation
        • P(c);
    • Try
      • B(D);XP(c)
      • Vars
        • K(a);OGATEB,P-FLIGHT,XS(B)::R(E)
      • Refutation
        • P(b);XS(B)
  • Actual
    • B(D);
    • Threat
      • B(D)+K(C)
    • Vars
      • K(a);OGATEB,P-FLIGHT,XS(B)::R(E)
      • P(b);SBLOCK,XS(B)::B(D)+K(C)
HTML5 logo

Developed and maintained by Brian Stephenson.
Implemented with HTML5, MySQL, Perl (with, inter alia, CGI::Simple, HTML::Template & XML::LibXML) & CSS/Javascript (jQuery, Bootstrap & DataTables).